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* Specifications are for base models with standard features
only unless otherwise noted. Specifications subject to
change without notice in accordance with our DBS policy
of continuous improvement. All product and brand names
are trademarks of their respective owners. All rights
reserved.
West Instruments™ brand and 8170+™ are trademarks of Danaher
Industrial Controls Group. All rights reserved.
© 2006 DICG Corp.
West Instruments Brand 8170+ Data Sheet (3/06)
SPECIFICATIONS*
1/8 DIN Valve Motor Drive Controller
8170+
TM
Affordable, Well-Featured,
Easy to Use and Adaptable
RATINGS/AGENCY APPROVALS
Conformance: CE, UR, cUR UL File # 67237
Safety: EN61010
EMC: EN61326
PROTECTION
IEC IP66 (NEMA 4X) front panel
IEC IP20 (behind the panel protection)
PHYSICAL DIMENSIONS
Panel Cutout: 1.77” x 3.62” (45mm x 92mm)
Height: 3.78” (96mm
Width: 1.89” (48mm)
Depth: 3.93” (100mm)
Weight: 0.46 lbs (0.21 kg)
Mounting: Plug in panel with fixing strap
OPTIONS/ACCESSORIES
NEW 24VDC transmitter power supply option
NEW Faster RS-485 serial communication speeds
and user-selectable (Modbus®or ASCII)
option
Digital Input 1 (Optional): Selects between two
setpoints or auto/manual control; volt free or
TTL input
Auxiliary Input Basic (Optional): 0–20mA,
4–20mA, 0–10V, 2–10V, 1–5V; scalable –1999 to
9999; local or remote setpoint selected from
front panel
Auxiliary Input Full (Optional): 0–20mA, 4–20mA,
0–100mV, 0–10V, 2–10V, 0–5V, 1–5V; ≥2kΩ
potentiometer; scalable –1999 to 9999; local or
remote setpoint selected from digital input
Optional Choice of LED colors: (red/red,
red/green, green/red, green/green); plus five
indicators
WARRANTY
3 Years
OUTPUTS
Important: Up to 4 outputs possible. Two of the
same type outputs are required to open &
close the valve. Additional outputs available
for alarm, 24VDC transmitter power supply or
retransmit of process value or setpoint.
Number of outputs and and types are optional,
see “MODELS” table.
Control & Alarm Relays Contacts: SPDT 2 Amp
resistive at 240V AC, >500,000 operations
Dual Relay: 2 SPST with shared common;
1 Amp resistive at 120/240V AC; >200,000
operations
SSR Drive: Optional drive capability:
>10 VDC nominal into 500 ohm minimum
Triac Outputs: 0.01 to 1 Amp AC, 20 to
280Vrms, 47 to 63Hz; 140V max. for Direct
VMD
DC Linear Outputs: 0 to 20mA, 4 to 20mA into
500 Ω max, 0 to 10V, 2 to 10V, 0 to 5V into
500 Ω min. Accuracy ±0.25% at 250 Ω
(degrades linearly to 0.5% for increasing
burden to specified limits). Retransmit of PV
or SP only
Transmitter Power Supply Output: 24VDC
(nominal) into 910 Ω minimum to power
external devices
OUTPUT FUNCTIONS
Valve Control: Open Loop Valve Motor Drive
Auto/Manual: Selected from front panel
Retransmit: Process value or setpoint
ELECTRICAL PERFORMANCE
Accuracy: ± 0.1% of input range ± 1 LSD (T/C
CJC better than 1 degree C)
Input sample rate: 4 per second, 14 bit
resolution
Impedance: >10M ohm for the thermocouple
and mV ranges, 47k ohm for V ranges and
5 ohm for mA ranges
Sensor Break Detection: <2 seconds (except
zero based DC ranges) control outputs turn
off. TC & mV ranges
: high alarms activate.
R
TD, mA or V ranges:
low alarms activate
COMMUNICATIONS INTERFACE
User-selectable: 2-wire, RS-485 serial
communications option with choice of
Modbus RTU or ASCII protocol; 1200 to
19200 baud
PC Configuration: Offline configuration from
serial port to dedicated configuration socket
(comms option not required)
STANDARD FEATURES
4 per second input sample rate
Universal input
NEW
Improved HMI, 4 button operation,
dual 4-digit LED display
NEW Plug-in output modules – install just
the function needed
NEW
Jumperless input configuration
NEW Auto-detection of installed output
modules
NEW Improved PC configuration software
Process alarms
Construction/Enclosure: Rugged ABS Plastic
housing
Control Types: Full PID with Pre-tune, Self-
tune and manual tuning modes.
ENVIRONMENTAL CHARACTERISTICS
Operating Temp:32° to 131°F (0° to 55°C)
Storage Temp: -4°to 176°F (-20° to 80°C)
Humidity: 20% to 95% non-condensing RH
ELECTRICAL
Supply Voltage: 100-240V, 50/60Hz, Optional
20-48VAC 50/60Hz or 22-65VDC
Power Consumption: 5W / 7.5 VA Maximum
INPUTS
Thermocouple: J, T, K, L, N, B, R, S, C;
PtRh20% vs. PtRh40%
RTD: 3-wire, PT100
DC Linear (Scalable –1999 to +9999)
Volts: 0-5V, 1-5V, 0-10V, 2-10V
DC milliamps: 0-20mA or 4-20mA
DC millivolts: 0-50mV, 10-50mV
Digital Input: Selects between 2 setpoints or
Auto/Manual control. Volt free or TTL input
Remote Setpoint / Valve Position Input:
0 to 20mA, 4 to 20mA, 0 to 100mV, 0 to
5V, 1 to 5V, 0 to 10V, 2 to 10V or ≥2K Ω
Potentiometer Scaleable -1999 to 9999.
Local/Remote setpoint selected from digital
input (supplied as part of Full RSP) or front
panel. Valve Position Indication mode
using Remote Setpoint Input.
Controllers